Decra Plus Tile Estimating Guide

The Tables below are for estimating purposes only. The figures quoted are based on nominal tile dimensions and are subject to normal manufacturing tolerances.
Count all fractions of tiles as whole tiles.
The table assume a simple mono-pitch or duo-pitch roof construction. More complicated roof structures will entail an additional wastage. We suggest an additional estimating figure of approx. 1.32 tiles x total linear metres of hips and valleys

Rafter length to suit fullcourses of tile including fascia*	Number of tile courses required	Roof length using barge covers	Number of tiles required
0.330	1	1.344	1
0.695	2	2.604	2
1.063	3	3.884	3
1.431	4	5.124	4
1.799	5	6.384	5
2.167	6	7.644	6
2.535	7	8.904	7
2.903	8	10.164	8
3.271	9	11.424	9
3.639	10	12.684	10
4.007	11	13.944	11
4.375	12	15.204	12
4.743	13	16.464	13
5.111	14	17.724	14
5.479	15	18.984	15
5.847	16	20.244	16
6.245	17	21.504	17
6.583	18	22.764	18
6.951	19	24.024	19
7.319	20	25.284	20
7.687	21	26.544	21
8.055	22	27.804	22
8.423	23	29.064	23
8.791	24	30.324	24
9.159	25	31.584	25
9.527	26	32.844	26
9.895	27	34.104	27
10.263	28	35.364	28
10.631	29	36.624	29
10.999	30	37.884	30
11.367	31	39.144	31
11.735	32	40.404	32

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